What began as a single fertilized egg has just separated into two distinct eggs. This indicates the formation of ____ twins that has occurred during the ____ period of development.
a. fraternal; zygotic
b. fraternal; embryonic
c. identical; zygotic
d. identical; embryonic
Question 2
Who is experiencing the first indicator of the onset of puberty in a typical female?
a. Mary, whose pubic hair has started to grow
b. Terri, who has just begun to menstruate
c. Geri, whose breasts have started to grow
d. Carrie, who has just begun to ovulate
The American paddlefish is poached for its eggs
A single crossover inserts F at a specific locus, which then determines the order of gene transfer
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Breakfast eggs with avocado
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